Air deflector for a semi-trailer



FIG. 1 is a side view of the air deflector for a semi-trailer, showing our new design, shown in its position of use;

FIG. 2 is an enlarged perspective view of the air deflector for a semi-trailer;

FIG. 3 is an enlarged front elevation view thereof;

FIG. 4 is an enlarged top plan view thereof;

FIG. 5 is an enlarged bottom plan view thereof;

FIG. 6 is an enlarged left side view thereof;

FIG. 7 is an enlarged right side view thereof; and,

FIG. 8 is an enlarged rear elevational view thereof.

The broken line showing of environment is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an air deflector for a semi-trailer, as shown and described. 